JPH05316776A - Motor controller - Google Patents

Motor controller

Info

Publication number
JPH05316776A
JPH05316776A JP11294192A JP11294192A JPH05316776A JP H05316776 A JPH05316776 A JP H05316776A JP 11294192 A JP11294192 A JP 11294192A JP 11294192 A JP11294192 A JP 11294192A JP H05316776 A JPH05316776 A JP H05316776A
Authority
JP
Japan
Prior art keywords
circuit
exciting coil
conduction
motor
signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP11294192A
Other languages
Japanese (ja)
Inventor
Akira Yamauchi
陽 山内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP11294192A priority Critical patent/JPH05316776A/en
Publication of JPH05316776A publication Critical patent/JPH05316776A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To realize easy and reliable maintenance of motor including setting/ modification of control program and starting system of motor. CONSTITUTION:A logical operation circuit 12 receives a start/stop operation signal, an external fault signal, and a main circuit current detection signal to perform logical operations for controlling and protecting a motor and controls conduction/interruption of exciting coils 5b, 28b, 29b depending on the operation results. In order to detect external fault signal and conduction of exciting coil, the exciting coil is provided with a conduction detecting circuit 24 equipped with means for supplying current low enough to prevent function of the exciting coil. The logical operation circuit 12 determines the starting system for motor based on the number of exciting coils and presence/absence of external fault signal to be detected through the conduction detecting circuit 24. Starting system for motor thus determined is stored in a memory circuit 18.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は電動機の始動および停止
等の制御機能並びに過負荷遮断等の保護機能を有する電
動機制御装置に係り、特に電動機の始動方式を電磁接触
器の励磁コイルの接続の個数と外部故障信号の接続とか
ら判別して設定する電動機制御装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric motor control device having a control function for starting and stopping an electric motor and a protective function for overload cutoff, and more particularly to a starting method of an electric motor by connecting an exciting coil of an electromagnetic contactor. The present invention relates to a motor control device that sets by discriminating it from the number and connection of an external failure signal.

【0002】[0002]

【従来の技術】この種の電動機制御装置の一例として、
電動機などの負荷の制御及び保護機能を有したコントロ
ールセンタが知られている。即ち、コントロールセンタ
においては、配線用遮断器,電磁接触器,電流検出器な
どの主回路器具を単位回路毎にまとめた複数のユニット
を多段に収納すると共に、各ユニット毎に始動停止表示
ランプ,始動用操作スイッチ,停止用操作スイッチなど
を備えた表示操作パネルを設けることにより構成されて
いる。また、近年においては、ユニットの仕様変更に容
易に対処可能とするために、電子応用技術を採用するこ
とによって、複数種類の制御及び保護機能のうち必要な
機能を適宜に設定、追加、変更できる構成とすることも
行われており、図3にその一例を示す。
2. Description of the Related Art As an example of this type of motor control device,
A control center having a function of controlling and protecting a load such as an electric motor is known. That is, in the control center, a plurality of units in which main circuit devices such as a circuit breaker for wiring, an electromagnetic contactor, and a current detector are collected for each unit circuit are housed in multiple stages, and a start / stop indicator lamp for each unit, It is configured by providing a display operation panel including a start operation switch and a stop operation switch. Further, in recent years, in order to easily cope with the specification change of the unit, by adopting electronic application technology, it is possible to appropriately set, add or change a necessary function among a plurality of types of control and protection functions. A configuration is also performed, and an example thereof is shown in FIG.

【0003】即ち、この図3はコントロールセンタの1
ユニット分の回路構成の概略を示すもので、三相の電源
母線1と負荷である電動機2との間の主回路3には、配
線用遮断器4,電磁接触器5,主回路電流検出用の電流
検出器6及び地絡電流検出用の零相変流器7が設けられ
ている。配線用遮断器4の負荷側には、操作用変圧器8
の一次側が接続されており、この変圧器8の二次側には
制御母線9,10が接続されている。
That is, FIG. 3 shows a control center 1
FIG. 1 is a schematic diagram of a circuit configuration for a unit. A main circuit 3 between a three-phase power bus 1 and a motor 2 that is a load includes a circuit breaker 4 for wiring, an electromagnetic contactor 5, and a main circuit current detection unit. The current detector 6 and the zero-phase current transformer 7 for detecting the ground fault current are provided. An operating transformer 8 is provided on the load side of the wiring breaker 4.
The primary side of the transformer 8 is connected, and the control buses 9 and 10 are connected to the secondary side of the transformer 8.

【0004】上記制御母線9,10から図示しない直流
電源回路を介して給電される制御回路装置11は、マイ
クロコンピュータから成る論理演算回路12を中心に構
成されている。この論理演算回路12は、始動用操作ス
イッチ13,停止用操作スイッチ14及び前記電磁接触
器5が有する常開形補助接点5aからの各オン信号を入
力回路15を介して受け、且つ電流変換器6及び零相変
流器7からの各信号を夫々A−D変換回路16を介して
受けると共に電磁接触器5の励磁コイル5bを出力回路
17を通じて通断電制御するようになっている。
A control circuit device 11 fed from the control buses 9 and 10 through a DC power supply circuit (not shown) mainly comprises a logical operation circuit 12 composed of a microcomputer. The logical operation circuit 12 receives each ON signal from the start operation switch 13, the stop operation switch 14 and the normally open auxiliary contact 5a of the electromagnetic contactor 5 via the input circuit 15, and the current converter. 6 and the zero-phase current transformer 7 receive the respective signals via the A / D converter circuit 16, and the exciting coil 5b of the electromagnetic contactor 5 is controlled to switch on and off through the output circuit 17.

【0005】記憶回路18には、過電流,欠相,不足電
流,地絡などの保護動作並びに瞬時停電再始動,限時再
始動などの制御動作を実行するための制御プログラム及
び機能データが記憶されており、論理演算回路12は、
上記制御プログラム,機能データ及び前記入力信号に基
づいた保護動作並びに制御動作を実行する。設定回路1
9は、記憶回路18に記憶する上記機能データをコント
ロールセンタの設置現場において所望に設定,選択でき
るように図示しない多数のディップスイッチなどにより
構成されている。この場合、設定回路19にあっては、
その設定内容が不用意に変更されないように、必要なと
きのみ露出できる構成とされるのが通常である。
The memory circuit 18 stores a control program and function data for executing protection operations such as overcurrent, open phase, undercurrent, ground fault, and control operations such as instantaneous power failure restart and timed restart. Therefore, the logical operation circuit 12
A protection operation and a control operation based on the control program, the function data and the input signal are executed. Setting circuit 1
Reference numeral 9 is composed of a large number of DIP switches or the like (not shown) so that the function data stored in the storage circuit 18 can be set and selected as desired at the installation site of the control center. In this case, in the setting circuit 19,
Usually, the setting contents are exposed only when necessary so that the setting contents are not changed carelessly.

【0006】[0006]

【発明が解決しようとする課題】ところで、上述のよう
なコントロールセンタにおいて、制御プログラムを決定
する機能データ設定値の変更及び確認、主回路器具の開
閉などを行う状況となった場合には、各ユニット内に設
けられた設定回路19を露出させた上でそれらが有する
ディップスイッチなどを切換操作することが必要とな
り、これと同時に設定状態の確認なども必要となる。
By the way, in the above-mentioned control center, when it becomes a situation of changing and confirming the set value of the function data for determining the control program and opening / closing of the main circuit device, It is necessary to expose the setting circuits 19 provided in the unit and then switch the dip switches and the like that they have, and at the same time, it is also necessary to confirm the setting state.

【0007】しかしながら、コントロールセンタのよう
に複数のユニットが段積み状に設けられたものでは、上
述したような設定回路19の露出操作を伴うスイッチ類
の切換操作が非常に煩雑になるものであり、総じてその
切換操作及び設定状態の確認に多くの手間がかかること
となって、保守管理に多くの費用を要するという問題点
があり、この点が未解決の課題となっていた。
However, in the case where a plurality of units are provided in a stack like a control center, the switching operation of the switches accompanied by the exposure operation of the setting circuit 19 as described above becomes very complicated. However, it takes a lot of time and labor to check the switching operation and the setting state as a whole, and there is a problem that a large amount of cost is required for maintenance and management, which is an unsolved problem.

【0008】本発明は、上記事情並びに近年の電動機制
御装置においては主回路器具の制御を予め記憶した制御
プログラムに基づいて行う論理演算回路が設けられるこ
とが多いという事情に鑑みてなされたもので、その目的
は、制御プログラムの設定変更などを含む保守管理を、
簡単且つ確実に行うことができる電動機制御装置を提供
するにある。
The present invention has been made in view of the above circumstances and the fact that a recent motor control device is often provided with a logical operation circuit for controlling a main circuit device based on a control program stored in advance. , Its purpose is maintenance, including changing the settings of the control program,
An object is to provide an electric motor control device that can be easily and reliably operated.

【0009】[0009]

【課題を解決するための手段】本発明による電動機制御
装置は、電動機の主回路を開閉するための電磁接触器
と、この電磁接触器を開閉操作する励磁コイルと、始動
および停止操作信号と外部故障信号並びに主回路電流検
出信号を受けて電動機の制御および保護動作を行なうた
めの論理演算を行ない、その演算結果に応じて前記励磁
コイルを通断電制御する論理演算回路と、外部故障信号
及び前記励磁コイルの接続の導通を検出するための導通
検出回路とを備え、この導通検出回路は前記励磁コイル
にこれが動作しない程度の小さい電流を供給する電流供
給手段を具備し、前記論理演算回路は前記導通検出回路
により検出した励磁コイルの個数と外部故障信号の接続
の有無とから電動機の始動方式を判別する機能を有する
ことを特徴とする。
An electric motor controller according to the present invention includes an electromagnetic contactor for opening and closing a main circuit of an electric motor, an exciting coil for opening and closing the electromagnetic contactor, start and stop operation signals, and external signals. A logical operation circuit that receives a failure signal and a main circuit current detection signal, performs a logical operation for controlling and protecting the electric motor, and controls the excitation coil to turn on and off according to the operation result, an external failure signal, and A conduction detection circuit for detecting conduction of connection of the exciting coil is provided, the conduction detection circuit includes a current supply means for supplying a small current to the exciting coil such that the exciting coil does not operate, and the logical operation circuit is It is characterized in that it has a function of discriminating the starting method of the electric motor from the number of exciting coils detected by the conduction detecting circuit and the presence / absence of connection of an external failure signal.

【0010】また導通検出回路により検出した励磁コイ
ルの個数と外部故障信号の接続の有無とから判別した電
動機の始動方式を記憶する記憶回路を設けたことを特徴
とする。
Further, the present invention is characterized in that a storage circuit for storing the starting method of the electric motor, which is discriminated from the number of exciting coils detected by the continuity detecting circuit and the presence / absence of connection of an external failure signal, is provided.

【0011】[0011]

【作用】始動方式により電磁接触器が異なる個数とな
り、また外部故障信号の接続の有無があることから、電
磁接触器の励磁コイル部と外部故障信号の接続部を含む
閉ループに小さい電流を周期的または連続的に流して、
その励磁コイル部と接続部の有無を確認して電動機の始
動方式を判別し、表示装置に表示させる。従って始動方
式の設定が容易に行な得るとともに表示装置により確認
できる。また始動方式を機能データとして記憶すること
により、励磁コイルが断線した時のデータとの相異を検
知できることから励磁コイルの断線検知も行なえる。
[Function] Since the number of electromagnetic contactors varies depending on the starting method, and whether an external failure signal is connected or not, a small current is periodically circulated in the closed loop including the exciting coil section of the electromagnetic contactor and the external failure signal connection section. Or run continuously,
The presence / absence of the exciting coil portion and the connecting portion is confirmed to determine the starting method of the electric motor, and the display device displays the method. Therefore, the start method can be easily set and can be confirmed by the display device. Further, by storing the starting method as the function data, it is possible to detect the difference between the data when the exciting coil is disconnected and the disconnection of the exciting coil can be detected.

【0012】[0012]

【実施例】以下、本発明をコントロールセンタに適用し
た一実施例について図1を参照しながら説明する。但
し、図1において、図3と同一符号を付した部分につい
ては構成、作用が同一であるため、その説明を省略す
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a control center will be described below with reference to FIG. However, in FIG. 1, the parts denoted by the same reference numerals as those in FIG. 3 have the same configurations and operations, and therefore the description thereof will be omitted.

【0013】即ち、図1はコントロールセンタの1ユニ
ット分の回路構成を示しており、同図において、制御母
線9,10から直流電源回路21を介して給電される制
御回路装置31は、マイクロコンピュータから成る論理
演算回路12を中心に構成されている。この論理演算回
路12は、始動用操作スイッチ13,停止用操作スイッ
チ14及び電磁接触器5が有する常開形補助接点5aか
らの各オン信号を入力回路15を介して受け、且つ電流
検出器6及び零相変流器7からの各信号を夫々A−D変
換回路16を介して受けると共に、電磁接触器5の励磁
コイル5bを出力回路17を介して通電制御するように
なっている。
That is, FIG. 1 shows the circuit configuration of one unit of the control center. In FIG. 1, the control circuit device 31 fed from the control buses 9 and 10 through the DC power supply circuit 21 is a microcomputer. The logic operation circuit 12 is composed mainly of The logical operation circuit 12 receives each ON signal from the start operation switch 13, the stop operation switch 14 and the normally open auxiliary contact 5a of the electromagnetic contactor 5 through the input circuit 15, and the current detector 6 Each signal from the zero-phase current transformer 7 is received via the A / D converter circuit 16, and the exciting coil 5b of the electromagnetic contactor 5 is controlled by the output circuit 17 to be energized.

【0014】記憶回路18には過電流,欠相,不足電
流,地絡等の保護動作並びに瞬時停電再始動,限時再始
動などの制御動作を実行するための制御プログラム及び
保護特性を決定する機能データが記憶されている。この
場合、論理演算回路12は、記憶回路18に記憶された
制御プログラム,機能データ及び前記入力信号に基づい
た保護動作並びに制御動作を実行する。設定回路19
は、記憶回路に記憶する上記機能データをコントロール
センタの設置現場において所望に設定,選択できるよう
に図示しない多数のディップスイッチなどにより構成さ
れている。
The memory circuit 18 has a function of determining a control program and protection characteristics for executing protection operations such as overcurrent, open phase, undercurrent, ground fault, and control operations such as instantaneous power failure restart and timed restart. The data is stored. In this case, the logical operation circuit 12 executes the protection operation and the control operation based on the control program stored in the storage circuit 18, the functional data and the input signal. Setting circuit 19
Is composed of a large number of dip switches (not shown) so that the function data stored in the memory circuit can be set and selected as desired at the installation site of the control center.

【0015】表示装置22は、論理演算回路12による
保護動作の実行状況及び電磁接触器5の開閉状況などを
表示するために設けられたもので、この他にも前記記憶
回路18に記憶される機能データも表示できるように構
成されている。故障検出回路は、A−D変換回路16の
出力に基づいて故障電流,故障電圧を検出し、その検出
結果を論理演算回路12に与える。
The display device 22 is provided for displaying the execution status of the protection operation by the logical operation circuit 12 and the opening / closing status of the electromagnetic contactor 5, and the like, and is also stored in the storage circuit 18. The function data is also displayed. The failure detection circuit detects a failure current and a failure voltage based on the output of the A / D conversion circuit 16 and gives the detection result to the logical operation circuit 12.

【0016】さて、制御回路措置31には励磁コイルの
導通検出のために導通検出回路24が設けられ、直流電
源回路21より給電された電源は抵抗25,制御母線
9,電磁接触器5の励磁コイル5bとが直列に介在され
電流閉ループ26を形成している。
The control circuit means 31 is provided with a continuity detecting circuit 24 for detecting the continuity of the exciting coil, and the power supplied from the DC power supply circuit 21 is the resistor 25, the control bus 9, and the electromagnetic contactor 5 is excited. The coil 5b and the coil 5b are interposed in series to form a current closed loop 26.

【0017】導通検出回路24は消費電力をできるだけ
抑えるためにタイマー回路27によって直流電流である
電流閉ループ26に一定周期で出力するように制御され
且つその電流値は電磁接触器5の励磁コイル5bを動作
させない小さい値に設定されている。
The continuity detecting circuit 24 is controlled by the timer circuit 27 so as to output to the current closed loop 26, which is a direct current, at a constant cycle in order to suppress the power consumption as much as possible, and the current value is the exciting coil 5b of the electromagnetic contactor 5. It is set to a small value that does not work.

【0018】一方図1の例である電磁接触器3個を必要
とする極数変換用電動機は、高速用電磁接触器28,短
絡用電磁接触器29を備え、それぞれ常閉形補助接点2
8a,29aを入力回路15に入力するとともに励磁コ
イル28b,29bを出力回路17を介して通断電制御
するようになっている。また電流検出器6により検出し
た電流値での保護は高速時の大きな電流域での過負荷保
護を行なうためのものであるため、低速側の過負荷保護
用に過負荷継電器30を備え、常閉形補助接点30aを
入力回路15を介して入力している。さらに高速側の始
動操作スイッチ31も備えている。ここで高速用電磁接
触器28の励磁コイル28bと短絡用電磁接触器29の
励磁コイル29bも同様に電流閉ループ26を形成して
おり、導通検出器24は、3つの励磁コイル5b,28
b,29bの通電を確認した結果を論理演算回路12に
伝達する。そして外部故障信号である過負荷継電器30
の常閉形補助接点30aの信号が入力回路15を介して
論理演算回路12に与えられた時には、論理演算回路1
2は始動方式を極数変換回路に設定し、記憶回路18に
記憶させると同時に表示装置22に表示を行なう。
On the other hand, the pole number converting motor which requires three electromagnetic contactors as shown in FIG. 1 includes a high speed electromagnetic contactor 28 and a short circuiting electromagnetic contactor 29, each of which is a normally closed auxiliary contact 2
8a and 29a are input to the input circuit 15, and the exciting coils 28b and 29b are controlled to be switched on and off via the output circuit 17. Further, since the protection with the current value detected by the current detector 6 is for overload protection in a large current region at high speed, an overload relay 30 is provided for overload protection on the low speed side, and The closed auxiliary contact 30a is input through the input circuit 15. Further, a start operation switch 31 on the high speed side is also provided. The exciting coil 28b of the high-speed electromagnetic contactor 28 and the exciting coil 29b of the short-circuiting electromagnetic contactor 29 also form the current closed loop 26, and the continuity detector 24 has three exciting coils 5b and 28b.
The result of confirming the energization of b and 29b is transmitted to the logical operation circuit 12. And the overload relay 30 which is an external failure signal
When the signal from the normally closed auxiliary contact 30a is given to the logical operation circuit 12 via the input circuit 15, the logical operation circuit 1
In No. 2, the starting method is set in the pole number conversion circuit, and the display circuit 22 simultaneously displays the data in the storage circuit 18.

【0019】他の始動方式の設定について図2のフロー
チャートを参照して説明する。即ち、導通検出を行った
結果、電磁接触器の励磁コイルの接続が1個と確認され
たときは非可逆回路、2個の場合であって過負荷継電器
の常閉形補助接点の入力が無ければ可逆回路、常閉形補
助接点の入力が有れば電磁接触器2個形の極数変換回
路,3個の場合であって過負荷継電器の常閉形補助接点
の入力が無ければスターデルタ回路、常閉形補助接点の
入力が有れば図1の例の如く電磁接触器3個形の極数変
換回路となる。
Setting of another starting method will be described with reference to the flowchart of FIG. That is, as a result of conducting detection, when it is confirmed that the excitation coil of the electromagnetic contactor is connected to one, it is a non-reciprocal circuit, and when there is no input to the normally closed auxiliary contact of the overload relay. Reversible circuit, normally closed auxiliary contact input if there is two electromagnetic contactor type pole conversion circuit, if there is no overloaded relay normally closed auxiliary contact input, star delta circuit, normally If there is an input from the closed auxiliary contact, a three-pole magnetic contactor type pole number conversion circuit as shown in the example of FIG.

【0020】従って上記構成によれば、制御回路装置3
1の制御プログラムを決定する機能データとしての始動
方式の設定を実配線を施すことのみにより確実に行な
え、各ユニットに設けられた設定回路の切換操作が不要
となる。
Therefore, according to the above configuration, the control circuit device 3
The setting of the starting method as the function data for determining the control program No. 1 can be surely performed only by providing the actual wiring, and the switching operation of the setting circuit provided in each unit becomes unnecessary.

【0021】尚この実施例は始動方式をいったん記憶回
路18に記憶しているため、励磁コイルが断線したとき
は励磁コイルの導通が記憶回路18内のデータと相異す
ることになるので、これに基づき励磁コイルの断線検知
も行なえる。
Since the starting method is once stored in the memory circuit 18 in this embodiment, when the exciting coil is disconnected, the conduction of the exciting coil is different from the data in the memory circuit 18. Based on this, it is possible to detect the disconnection of the exciting coil.

【0022】[0022]

【発明の効果】本発明によれば、制御プログラムを決定
する機能データ設定値を、各ユニットに設けられた設定
回路を露出させた上で、それらが有するディップスイッ
チなどを切換操作することなしに設定を行なうとともに
設定内容の確認が簡単且つ確実に行なえるだけでなく誤
った設定による異常動作は全くなくなる優れた効果があ
る。
According to the present invention, the function data set value for determining the control program is exposed without exposing the setting circuit provided in each unit, and the dip switch or the like of the unit is not changed over. Not only the setting and the confirmation of the setting contents can be easily and surely performed, but also the abnormal operation due to the incorrect setting is completely eliminated.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による電動機制御装置の一実施例を示す
回路図
FIG. 1 is a circuit diagram showing an embodiment of a motor control device according to the present invention.

【図2】本発明による電動機制御装置において始動方式
を判別する手順を説明するフローチャート
FIG. 2 is a flowchart illustrating a procedure for determining a starting method in the motor control device according to the present invention.

【図3】従来の電動機制御装置を示す回路図FIG. 3 is a circuit diagram showing a conventional motor control device.

【符号の説明】[Explanation of symbols]

2は電動機、5,28,29は電磁接触器、5b,28
b,29bは励磁コイル、12は論理演算回路、18は
記憶回路、24は導通検出回路、30は過負荷継電器、
31は制御回路装置である。
2 is an electric motor, 5, 28 and 29 are electromagnetic contactors, 5b and 28
b and 29b are exciting coils, 12 is a logical operation circuit, 18 is a memory circuit, 24 is a continuity detecting circuit, 30 is an overload relay,
Reference numeral 31 is a control circuit device.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 電動機の主回路を開閉するための電磁接
触器と、この電磁接触器を開閉操作する励磁コイルと、
始動および停止操作信号と外部故障信号並びに主回路電
流検出信号を受けて電動機の制御および保護動作を行な
うための論理演算を行ない、その演算結果に応じて前記
励磁コイルを通断電制御する論理演算回路と、外部故障
信号及び前記励磁コイルの接続の導通を検出するための
導通検出回路とを備え、この導通検出回路は前記励磁コ
イルにこれが動作しない程度の小さい電流を供給する電
流供給手段を具備し、前記論理演算回路は前記導通検出
回路により検出した励磁コイルの個数と外部故障信号の
接続の有無とから電動機の始動方式を判別する機能を有
することを特徴とする電動機制御装置。
1. An electromagnetic contactor for opening and closing a main circuit of an electric motor, and an exciting coil for opening and closing the electromagnetic contactor.
A logical operation for receiving a start / stop operation signal, an external failure signal, and a main circuit current detection signal to perform a logical operation for controlling and protecting the electric motor, and controlling the excitation coil to turn on / off in accordance with the operation result. A circuit and a conduction detection circuit for detecting an external failure signal and conduction of the connection of the exciting coil, the conduction detecting circuit having a current supply means for supplying a small current to the exciting coil such that the exciting coil does not operate. The logical operation circuit has a function of determining the starting method of the electric motor based on the number of exciting coils detected by the conduction detecting circuit and the presence / absence of connection of an external failure signal.
【請求項2】 導通検出回路により検出した励磁コイル
の個数と外部故障信号の接続の有無とから判別した電動
機の始動方式を記憶する記憶回路を設けたことを特徴と
する請求項1に記載の電動機制御装置。
2. The storage circuit according to claim 1, further comprising a memory circuit for storing a starting method of the electric motor, which is discriminated based on the number of exciting coils detected by the continuity detecting circuit and presence / absence of connection of an external failure signal. Motor control device.
JP11294192A 1992-05-06 1992-05-06 Motor controller Pending JPH05316776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11294192A JPH05316776A (en) 1992-05-06 1992-05-06 Motor controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11294192A JPH05316776A (en) 1992-05-06 1992-05-06 Motor controller

Publications (1)

Publication Number Publication Date
JPH05316776A true JPH05316776A (en) 1993-11-26

Family

ID=14599342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11294192A Pending JPH05316776A (en) 1992-05-06 1992-05-06 Motor controller

Country Status (1)

Country Link
JP (1) JPH05316776A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100327168B1 (en) * 1999-12-30 2002-03-13 나병영 Circuit for starting of induction motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100327168B1 (en) * 1999-12-30 2002-03-13 나병영 Circuit for starting of induction motor

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